Cardiorespiratory alterations induced by low-intensity exercise performed in water or on land

Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme
Karine AymeAlain Boussuges

Abstract

The aim of this study was to compare the cardiorespiratory alterations induced by a low-intensity exercise performed on land or in water. Sixteen healthy subjects were investigated. The exercise consisted of a 1-h period of ergocycling at 35%-40% of peak oxygen uptake. Investigations were performed at rest and 45 min after the beginning of the exercises. Hemodynamic changes were studied by Doppler-echocardiography. Gas exchanges were continuously monitored by an oxygen gas analyzer. Blood samples were taken successively at baseline, within the last minutes of the exercise bout, and during recovery to measure total protein concentration and natriuretic peptides. Cardiovascular parameters were not significantly different during exercise performed on land or in water. As a result of an accelerated breathing frequency, ventilation output was significantly greater in water. Biological changes included a decrease in total protein concentration and an increase in natriuretic peptides in water. During low-intensity exercise, ventilatory alterations favoured increasing the work of breathing while in the water when compared with the same exercise performed on land. Hemodynamic changes were similar in the 2 conditions. Furthermore, biolog...Continue Reading

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Citations

Aug 27, 2015·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Olivier GavarryAlain Boussuges
Aug 27, 2015·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Mathieu GaydaMartin Juneau
Jun 2, 2016·Journal of the International Society of Sports Nutrition·Giovanna GhianiFilippo Tocco
Aug 11, 2017·Clinical Physiology and Functional Imaging·Alain BoussugesOlivier Gavarry
Aug 25, 2018·Clinical and Experimental Hypertension : CHE·Yuto Hashimoto, Takanobu Okamoto
Feb 16, 2021·International Journal of Sport Nutrition and Exercise Metabolism·Lore MetzMartine Duclos

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